-20.32% is the change from 571 to 455
Calculation steps:
[( 455 - 571 ) ÷ 571] x 100 = -20.32%
Formula
Percentage change = [(455 - 571) / 571] x 100
Subtract the new number by the original number
455 - 571 = -116
-116 ÷ 571 = -0.2031523642732049
-0.2031523642732049 x 100 = -20.32%